Ah! I know that actually! I did play Seasons a bunch of time. Hang on, I'll rephrase the situation.
Let's say I have my mods folders empty and clean, I start a new game, select my season normally, play through it and save. The next time I play everything will be fine and I can play that save normally (or any of my other saves). However whenever I try adding a scripted mod (any of them I noticed) I pick a save and it asks me to pick a season again. I pick one and then I'm welcomed by a glitched screen. I made a link of the screen to show you what prevents me from playing with scripts (I just can't post it since I'm new to the forum lol) It shows that the household I chose isn't appearing and I have 0 funds, I can't access cas and usign a household from the gallery will close the game. Also I don't get any file explaining why my game crashed...). I tried different save files in case one was corrupted but it will always happen. I know it doesn't come from the scripted mods, they're updated, I've seen some people use them daily lately with no issue. I've been using mods and cc for a year so I know conflicts can happen so I tried everything, even reinstalling the game.
So now all I can do to be able to play is to never use any mods that require a script :(